I've just found the problem is not as simple as it seems. The lightmediascanner0-ogg package actually depends on libvorbis0a. If the former is installed without the latter, it won't work at all. So, until we don't come with an appropriate solution for this issue, would you please perform the following installation steps:

1) Install ogg-support from application manager (instructions in http://ogg.garage.maemo.org)

2) Install libvorbis0a package manually either using application manager in red pill mode or typing the following command in xterm *AS ROOT*

# apt-get install libvorbis0a

3) Finally, download and install the lightmediascanner0-ogg package using either application manager in red pill mode or typing the following command in xterm *AS ROOT*

# dpkg -i path/to/lightmediascanner/package

I'll work on the proper solution together with Tuomas Kulve where we'll provide a dummy package called "canola-ogg-support" or something, which will install the correct dependencies so that canola can play and scan ogg files.

Sorry for the annoyance once again.